Abstract

Abstract We consider the instability that is induced when a large (supercritical) magnetic field is applied to a sample of smectic C liquid crystal held between parallel plates in a bookshelf geometry, with strong anchoring at the cell walls. Using a recently proposed dynamic theory, we solve the full linearized equations (with transportation of material between the smectic layers allowed) to show that the backflow that is induced has components both parallel and perpendicular to the layers, in contrast with the assumptions of Carlsson et al. The corresponding growth rate of the instability is obtained in terms of the applied field strength and material parameters.

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